Went to the track last nite and noticed that the boost will not go past 15psi..no matter how much I adjust the wastegate..I have the gate adjusted all the way in and it still only hits 15..And seems to drop off to about 12 during a run..I have a R/A93 chip in it..And was running 100 octane with .7KR on scanmaster..What would be the cause of the limited boost and not being able to hold a steady 15.....Any Help greatly appreciated...Thnx Shawn.TTA #343..Oh yeah...fp set @45 line off...Did have a very lazy o2 sensor decided to die last nite...highest # i saw on o2's were 500...